... .PRINCIPLE The membrane of the test device was coated with anti HCG antibodies on the test region and goat anti mouse IgG antibodies on ... antibody-antigen complex. This complex is captured by anti HCG antibody immobilized on the test region (T) and produces a pink color ... the test with a new one.More rapid diagnostic products available including hCG,LH,FSH,HIV,HBSAG,HCV,HBV,HEV,SYPLILIS,TB,HP ...